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Some of the principal lithologies and mineralisation at the Las Bambas, Ferrobamba deposit: Top left: Sheeted veining within low grade intramineral porphyry; Top right: mineralised vein within intramineral porphyry; Centre left: High grade garnet endoskarn; Centre right: high grade pyroxene (diopside - CaMgSi2O6) rich exoskarn after an impure carbonate protolith; Lower left: bornite-rich garnet exoskarn [grossularite Ca3Al2(SiO4)3 near intrusive contact, grading to distal andradite Ca3Fe2(SiO4)3]; Lower centre: banded garnet-diopside exoskarn, interpreted to be mimicking original bedding; and Lower right: less altered distal host rock composed of marble and weakly altered calc-silicates and transitional skarn, including fracture controlled garnet. Images by Mike Porter, 2018. 
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